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SPECIAL AR 3157167 - Caterpillar

3157167 SPECIAL AR Caterpillar parts SPECIAL
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Caterpillar 3157167 SPECIAL AR

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Diesel engine exhaust contains products of combustion which may cause personal injury.Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.
Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts.Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified.The machine must be parked on a level surface and the engine stopped.Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine.
Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.
Table 1
Required Tools    
Tool    Part Number    Description    Qty    
A     146-4080     Digital Multimeter Gp     1    
B     7X-1710     Multimeter Probe     1    
Drive the machine to a smooth, horizontal surface.
Illustration 1 g02511936
Move propel lever (1) to the NEUTRAL position.
Rotate speed dial (4) to the MINIMUM position.
Move parking brake switch (2) to the ON position.
Move propel mode switch (3) to the PAVE position.Note: The machine must be in PAVE mode in order to operate the screed lift system.
Illustration 2 g02511939
Move screed lift switch (5) to the FLOAT position. Allow the screed to lower to the ground.Note: The screed lift switch on both instrument panels must be in the FLOAT position in order for the screed to lower.
After the screed rests on the ground, move screed lift switch (5) to the HOLD position.
Illustration 3 g02511944
Move throttle control switch (6) to the LOW IDLE position. Hold the switch in this position for less than 1 second.
Illustration 4 g02511946
After the engine reaches low idle, move engine start switch (7) to the OFF position.
Illustration 5 g02511957
Illustration 6 g02511959
Remove seven torx screws (8) from the instrument panel. Lift the instrument panel in order to access the wiring and components of the instrument panel.
Illustration 7 g02511961
Disconnect signal cable (10) from speed potentiometer connector (9) .
Insert red spoon from Tool (B) into contact "C" (K708-BU) of speed potentiometer connector (9). Connect red spoon to Tool (A) .
Insert black spoon from Tool (B) into contact "B" (N703-BR) of speed potentiometer connector (9). Connect black spoon to Tool (A) .
Set Tool (A) to read "Ohms".
Value on Tool (A) should be 0 to 1 ohms.
Slowly, steadily rotate speed dial (4) to the MAXIMUM position. Observe reading on Tool (A). The value should steadily increase as the dial is moved to the maximum range. The value should not stop increasing until the dial reaches the maximum stop. When the dial is against the maximum stop, value on Tool (A) should be 975 50 ohms.
Move speed dial (4) to the MINIMUM position.
If the measurements in Step 15 and Step 16 are within the specified range, the sensor is functioning properly. Go

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